About Thermline
Thermline is a **free matching service** for homeowners who want help planning insulation and finding licensed, insured installers nearby. We built it to make insulation easier to understand, easier to compare, and less stressful for people who prefer plain language or speak a language other than English at home.
Our mission
Home insulation can feel confusing. There are many materials, many opinions, and many price ranges. It can be hard to know where to start.
Our mission is simple: give homeowners clear, plain-language information about insulation and help them connect with licensed, insured installers in their area.
We focus on common projects like attic insulation, wall insulation, crawlspace or basement insulation, blown-in insulation, batt insulation, spray foam, and air-sealing or weatherization. We explain the basics in simple words, including R-value, which is a way to measure how well insulation slows heat flow. A higher R-value can mean better resistance to heat moving in or out, but the right target depends on your climate, home, and project.
Thermline is not an insulation contractor. We do not install insulation, inspect homes, perform energy audits, or give construction or financial advice. We are here to help you understand your options and take the next step with more confidence.
If you want to see the process, visit how it works or start here: get matched.
How Thermline is paid
Thermline is free for homeowners.
We are paid by participating insulation installers. In general, installers may pay a flat fee to receive homeowner requests from people looking for insulation help in their service area. We do not take a percentage of your project price, and we do not add a markup to the installer's price.
That matters because our role is to help you compare your options, not to increase the cost of the job. Any insulation price you receive comes from the installer, not from Thermline.
Keep in mind that any costs discussed on our site are typical ranges and estimates, not quotes or guarantees. The real price depends on the area being insulated, the R-value target, the material used, your home's age and access, whether old insulation must be removed, and your region. You can learn more on our costs page.
Who this is for
Thermline is for U.S. homeowners who want a simpler way to plan insulation work.
It is especially helpful for:
- first-time homeowners
- busy families who want to compare options faster
- people who are not sure which insulation type fits their home
- homeowners who prefer plain English
- non-native-English speakers and multilingual households
- people who want help preparing before they speak with installers
We built Thermline to be welcoming and easy to use. You do not need to know insulation terms before you start.
No matter who you are, we encourage the same careful steps:
- Hire licensed and insured insulation installers.
- Verify the license and insurance yourself.
- Get the job scope, material, and target R-value in writing before any deposit.
- Ask whether permits or code requirements apply in your area.
If you have questions about using Thermline, please contact us.
Thermline helps homeowners learn about insulation and find licensed, insured installers nearby for free. Installers may pay us a flat fee to receive requests, but we do not take part of your project price.
Common questions
Does Thermline install insulation or give quotes?
Get matched with a licensed insulation installer — free
Tell us about your project and your area. We connect you, at no cost, with licensed, insured insulation installers near you. You compare and choose who to hire.